Unable to change SeriesColor for TLineSeries (2010)

[fredff13]

Hi, I think you fixed bug for TeeChart VCL version 8 (TV52014124) but we are using 2010. I just installed it but I still did not get TLineSeries color that changed in run-time. They are keeping design-time colors! The only solution is to create all series from scratch.

Thanks, Fred

[Sandra]

Hello Fred,

You are right. I have added your request in bug list with number [TV52015199]. We will try to fix it for next versions of TeeChart VCL.

Thanks,

[Narcís]

Hi Fred,

I found that this issue can be solved with a couple of simple changes at DrawPoint nested method in TCustomSeries.DrawValue at Series.pas:

Code: Select all

       if (not View3D) and FDrawLine then
       begin
          // ???
          if LinePen.Color <> clBlack then
          begin
            if LinePen.Color <> SeriesColor then
            begin
              tmpColor:=LinePen.Color;
              SeriesColor:=LinePen.Color;
            end;
          end
          else
             LinePen.Color:=SeriesColor;

          CheckMaxPixelXY;
          DrawLine2D;
       end;

We are investigating why this was changed. If everything is correct we will add the fix to the next maintenance release.

[Steve Maughan]

This worked for me! Hopefully is a permanent fix!

Thanks,

Steve

[Narcís]

Hi Steve,

A client found an issue with previous code and I think I found a better solution to TV52015199 which is using this code:

Code: Select all

       if (not View3D) and FDrawLine then
       begin
          if ColorEachLine then
            tmpColor:=ValueColor[ValueIndex]
          else
            if LinePen.Color <> clBlack then
            begin
              if LinePen.Color <> SeriesColor then
              begin
                tmpColor:=LinePen.Color;
                SeriesColor:=tmpColor;
              end;
            end
            else
               tmpColor:=SeriesColor;

          CheckMaxPixelXY;
          DrawLine2D;
       end;

Can you please test if this works fine at your end?

Thanks in advance.